<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" isELIgnored="false"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<% 
  String username = (String)session.getAttribute("username");
  pageContext.setAttribute("username", username);
%>

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>welcome page of admin</title>
</head>
<body>
  <h3>系统管理员 ${username} 您好！</h3>
</body>